**8. Complications of primary repair**

The most common complication of flexor tendon surgery are tendon adhesions which can limit the range of movement of the tendon. This is followed by re-rupture, joint contracture and triggering of the fingers. There is a 15–25% re-rupture rate after surgical repair [61]. Treatment of re-rupture of tendons is as follows [61]:


Rarer complications of flexor tendon injury repairs are Swan-neck deformity, Lumbrical plus finger, and Quadrigia effect.
